<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      new Promise(function (resolve, reject) {
        setTimeout(() => {
          try {
            // 异步抛错
            throw new Error("Whoops!");
          } catch (error) {}
        }, 1000);
      }).catch((err) => {
        console.log(err);
      });
    </script>
  </body>
</html>
